2001302189 has 2 divisors, whose sum is σ = 2001302190. Its totient is φ = 2001302188.

The previous prime is 2001302183. The next prime is 2001302249. The reversal of 2001302189 is 9812031002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1478402500 + 522899689 = 38450^2 + 22867^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001302189 - 2⁸ = 2001301933 is a prime.

It is a super-3 number, since 3×2001302189³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2001302183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000651094 + 1000651095.

It is an arithmetic number, because the mean of its divisors is an integer number (1000651095).

Almost surely, 2^2001302189 is an apocalyptic number.

It is an amenable number.

2001302189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001302189 is an equidigital number, since it uses as much as digits as its factorization.

2001302189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 2001302189 is about 44735.9160965773. The cubic root of 2001302189 is about 1260.1944331260.

The spelling of 2001302189 in words is "two billion, one million, three hundred two thousand, one hundred eighty-nine".